SECURITY REPORT · EXTENSHI SCAN
CastPass
Firefox extension·by Cast-er Management
0
/ 100 SAFETY SCORE
CRITICAL
Severe indicators. Treat as unsafe until the developer addresses these findings.
Likely abandonedsafety score reduced by 30 points
- No update in over 5 years
Why this matters
An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.
Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue
How it ranks
CastPass's safety score vs every other extension we've scanned
Globally
1%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
1%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
266
median 38Lower is safer
Risky permissions
3
median 1Critical + high perms
Total permissions
5
median 4All declared perms
Critical findings
2
median 2Severity = Critical
Findings breakdown
Automated security signal · 266 distinct issues across 6 severities
266
distinct issues
detected
detected
Scanners reported 331 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical21%
High6926%
Needs Review00%
Medium14053%
Low2710%
Info2811%
Permissions requested
3 risky permissions of 5 total
3 high-risk permissions require attention
This extension requests 5 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
High
Access all HTTP sites
Can read and modify content on all non-encrypted websites
High
Access all HTTPS sites
Can read and modify content on all encrypted websites
High
View open tabs
Can see URLs and titles of all open tabs
Medium
Store local data
Can save data locally in the browser for persistence
Low
Schedule tasks
Can schedule periodic background tasks
Are you the author of CastPass?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show CastPass's live security score on GitHub or in your docs
Scan performed by extenshi.io · Jul 31, 2026· partial run (some scanners failed)
Browser extensions made transparent.